indiscernible.

1. Too slight, obscure or hidden to be perceived or detected under the relevant conditions.

2. So alike in the relevant respect that no difference can be discerned.

Use it for

Words that belong together

• indiscernible change
• indiscernible outline

On the page

The change was indiscernible in the dim light but clear under the inspection lamp.

An indiscernible outline remained where the narrator remembered a doorway.

Usage notes

Primary category: literary / elevated general. Forms: Comparative more indiscernible; superlative most indiscernible where gradation is meaningful. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description, interpretation, contrast, characterization. Disciplines: prose writing, literary analysis, advanced general English. Commonness: uncommon.